Rs232C Port Test - Casio SE-S400 Service Manual

[11] RS232C Test (Port Test, Batch Test)
[Function]
Tests the communication of RS232C using the loop back tool.
[IMPORTANT]
Information of the loop back tool.
Pin assignment on the register side (male)
1
6

[11-1] RS232C Port Test

[Operation]
Connect the loop back tool to the connector which you wish to test.
Command : x n 0 4 d k
x: Baud rate selection (bps)
0=2400, 1=4800, 2=9600, 3=19.2 k, 4=38.4 k, 5=56 k, 6=Invalid, 7=115.2k
n: Number of times to run
0 Once (Can be omitted)
1 ~ 9 Infinite loop (To forcibly terminate the test, press the C
d: COM Port select
1 COM1 (UART1)
2 COM2 (UART0)
[Display of the Result]
- - >
TxD
[Printout of the Result]
COM1
RTS1=1 -- > CTS1=1
DTR1=1 -- > DSR1=1
RTS1=0 -- > CTS1=0
DTR1=0 -- > DSR1=0
-- > RxD
TxD
END
SE-S3000/PCR-T2300/PCR-T2400/SE-C3500
Pin
5
9
RxD OK
30041
OK
OK
OK
OK
OK
30041
– 30 –
SE-S400/PCR-T500/PCR-T520/SE-C450/
Signal Name
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
key.)
Connection information